STM32WB55xx STM32WB35xx
Electrical characteristics
Quad-SPI characteristics
Unless otherwise specified, the parameters given in Table 94 and Table 95 for Quad-SPI
are derived from tests performed under the ambient temperature, fAHB frequency and VDD
supply voltage conditions summarized in Table 24: General operating conditions, with the
following configuration:
ï‚· Output speed is set to OSPEEDRy[1:0] = 11
ï‚· Capacitive load C = 15 or 20 pF
ï‚· Measurement points are set at CMOS levels: 0.5 â‚“ VDD
Refer to Section 6.3.17 for more details on the input/output alternate function
characteristics.
Table 94. Quad-SPI characteristics in SDR mode(1)
Symbol
Parameter
Conditions
Min
Typ
1.65 < VDD< 3.6 V, CLOAD = 20 pFï€
Voltage Range 1
-
-
FCK Quad-SPIï€
1.65 < VDD< 3.6 V, CLOAD = 15 pFï€
Voltage Range 1
-
-
1/t(CK) clock frequency
2.7 < VDD< 3.6 V, CLOAD = 15 pFï€
Voltage Range 1
-
-
1.65 < VDD < 3.6 V CLOAD = 20 pFï€
Voltage Range 2
-
-
tw(CKH)
tw(CKL)
ts(IN)
Quad-SPI clockï€
high and low time
Data input setup time
fAHBCLK= 48 MHz, presc=1
Voltage Range 1
Voltage Range 2
t(CK)/2 - 0.5
-
t(CK)/2 - 1
-
2
-
3.5
-
th(IN)
Data input hold time
Voltage Range 1
Voltage Range 2
4.5
-
6
-
tv(OUT)
Voltage Range 1
Data output valid time
Voltage Range 2
-
1
-
1
th(OUT)
Voltage Range 1
Data output hold time
Voltage Range 2
0
-
0
-
1. Guaranteed by characterization results.
Max
Unit
40
48
MHz
60
16
t(CK)/2 + 1
t(CK)/2 + 0.5
-
-
-
ns
-
1.5
1.5
-
-
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